design an experiment which will allow you to produce exactly 12.5gr of pure dry Copper Hydroxide also need

equipment required
chemicals required
step by step
any limitations cautions

To design an experiment to produce exactly 12.5g of pure dry Copper Hydroxide, you will need the following equipment and chemicals:

Equipment:
1. Balance (preferably a digital balance with a precision of at least 0.01g)
2. Glass beaker or container
3. Glass stirring rod
4. Filter funnel
5. Filter paper
6. Bunsen burner or heating source
7. Crucible and crucible tongs for heating

Chemicals:
1. Copper sulfate pentahydrate (CuSO4·5H2O)
2. Sodium hydroxide (NaOH)
3. Distilled water

Step-by-Step Procedure:

1. Measure out exactly 12.5g of copper sulfate pentahydrate (CuSO4·5H2O) using the balance. Transfer the measured amount to the glass beaker.
2. Dissolve the copper sulfate in a small amount of distilled water. Stir it gently until the copper sulfate dissolves completely.
3. Prepare a sodium hydroxide solution by dissolving an excess amount of sodium hydroxide in distilled water. The exact amount is not crucial since we want to ensure we have enough to react with all of the copper sulfate.
4. Slowly add the sodium hydroxide solution to the copper sulfate solution while stirring continuously. This will cause a chemical reaction and precipitate the copper hydroxide.
5. Continue stirring until you observe that no more precipitate forms, indicating that all the copper sulfate has reacted. Allow the mixture to settle for a few minutes.
6. Set up the filtration system by placing the filter funnel on a clean glass container and lining it with filter paper.
7. Carefully pour the mixture into the filter funnel to separate the solid copper hydroxide from the liquid.
8. Rinse the copper hydroxide on the filter paper with a small amount of distilled water to remove any impurities.
9. Allow the filter paper and copper hydroxide to dry completely. This can be done by leaving it in a warm place, or you can use a crucible and a heating source to evaporate the water and dry the sample.
10. Once the copper hydroxide is dry, carefully weigh it using the balance. If the weight is less than 12.5g, repeat steps 2 to 9 until you obtain the desired quantity.

Limitations and Cautions:
1. Be cautious when handling chemicals, as some of them can be harmful or irritating to the skin and eyes. Wear appropriate protective equipment, such as gloves and goggles.
2. Work in a well-ventilated area or under a fume hood to ensure proper ventilation.
3. Handle the balance and glassware with care to avoid accidents or breakage.
4. Ensure that all equipment used is clean and dry to prevent contamination.
5. Always follow safety protocols and disposal guidelines for handling chemicals.

Remember to always exercise caution and follow proper laboratory procedures when conducting experiments involving chemicals.